On June 21, 2011, around 11:08 p.m., four officers went to the 4100 block of Dorsey Street to investigate a domestic violence radio call. Officers announced their presence and after getting no response they entered the residence to investigate and ensure the safety of any domestic violence victim.

Officers directed their attention to a bedroom where they heard noises and movement behind a closed bedroom door. Believing a domestic violence victim was likely in danger on the other side of the door the officers entered and forced open the bedroom door. Mack, who was in the bedroom rapidly turned in the officers direction holding an object that the officer believed to be a gun, at which time an officer involved shooting occurred.

Mack was not injured and immediately surrendered and was taken into custody. No officers were injured during this incident.